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Bell 525 Relentless vs Embraer Legacy 650 E vs Leonardo Aw189 vs Piper M600 Sls

The Bell 525 Relentless and Leonardo AW189 are medium/heavy twin‑engine helicopters, while the Embraer Legacy 650E is a large long‑range business jet and the Piper M600 SLS is a single‑engine turboprop. In range, the Legacy 650E is by far the leader, typically offering roughly 3,900–4,000 nautical miles, suited to true intercontinental missions. The Piper M600 SLS is next, generally around 1,300–1,500 nautical miles, aimed at efficient owner‑flown regional trips. The Bell 525 and AW189 have helicopter‑typical ranges that are much shorter than fixed‑wing aircraft, commonly in the several‑hundred‑nautical‑mile class (roughly about 450–550 nm depending on fuel and payload), optimized for point‑to‑point access rather than distance. For passenger capacity, the Legacy 650E typically carries about 10–13 passengers in executive seating. The Bell 525 and AW189 can be configured broadly, often around 12–16 passengers depending on layout and mission. The Piper M600 SLS is the smallest, typically seating one pilot plus up to five passengers.

SpecBell 525 RelentlessAGUSTA / LEONARDO AW189Piper M600 SLS
Summary
Cockpit222
Min Crew211
Total Seats18216
Flight RulesIFRIFRIFR
ManufacturerBellLeonardoPiper
Aircraft Name525 RelentlessAW189M600
CertificationFAA / EASAFAA / EASAFAA / EASA
Max Range (nm)5806511406
Max Cabin Seats1619
OEM VerificationVERIFIEDUn-VerifiedVERIFIED
Useful Load (lbs)66752200
Standard Cabin Seats16194
Flight Deck (Base Spec)Garmin G5000HEFISGarmin G3000
Max Cruise Speed (ktas)160155274
Base Aircraft Price (USD)$15,000,000$2,413,000$3,081,400
DOC / nm$ 15.57$ 2.19
DOC / nm / Seat$ 0.74$ 0.55
Direct Operating Cost$ 2,413$ 603
Cabin
Cockpit222
Min Crew211
Total Seats18215
Max Cabin Seats1619
Standard Cabin Seats16194
LavatoryNo
Galley LocationMID
Cabin Pressure (psi)5.6
Galley / RefreshmentRefreshment Centre
SL Cabin Altitude (ft)12600
Max Cabin Altitude (ft)8644
Engine
FADECDual-ChannelYesNo
ModelCT7-2F1CT7-2E1PT6A-42A
Fuel TypeJetFuelJetFuel
TBO (hrs)400040003600
Horsepower18001983600
No. of Engines221
Fuel Capacity (gal)641260
Flat RatingISA + 55
Dimensions
Width (ft)25.77
Length (ft)61.5857.829.7
Cabin Width (ft)7.584.1
Cabin Height (ft)4.54
Cabin Length (ft)15.512.3
Overall Height (ft)18.1816.611.3
Rotor Diameter (ft)54.548
Baggage Volume Ext. (cu. ft)12885
Cabin Volume (cu. ft)395165
Wingspan (ft)43.2
Baggage Volume Int. (cu. ft)20